package com.example.demo1.Controller;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {
    @Value("${app.name}")
    private String appName;

    @GetMapping("/hello")//get方法
    public String sayHello(){

        return "Hello,"+ appName +"Spring Boot!";
    }

}
